TECHSPEC® Gold Series Focusable Telecentric Lenses

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  • Designed Specifically for Machine Vision Applications
  • <0.2° Telecentricity
  • High Resolution and Low Distortion
  • Max Sensor Size: 2/3" or 1/2" Format Series

Important tools for machine vision systems and metrology applications, telecentric lenses yield images from which precise measurements can be taken. We offer two series of TECHSPEC® Gold Series Focusable Telecentric Lenses, for either 2/3" or 1/2" format sensor sizes. The 2/3" Format Series includes 5 lenses and are for use with either 2/3" or smaller size sensors. The 1/2" Format Series includes 4 lenses and are for use with 1/2" or smaller size sensors. The new 1/2" series maximizes field coverage by matching the largest field of view values for the 2/3" series, which allows for larger fields with smaller cameras. These lenses yield constant magnification over a defined depth of field and are optimized to provide <0.2° telecentricity when used in the specified working distance range. Anywhere within the specified working distance, the same magnification can be obtained simply by refocusing. Because maximum field of view in telecentric systems directly relates to the lens aperture closest to the object, larger front lenses are necessary for larger fields of view.

All the TECHSPEC® Gold Series Focusable Telecentric Lenses have a front filter thread for the addition of color filters, polarizers, or other mounted components that optimize machine vision applications. Both the aperture and focusing adjustment positions can be fixed by set screws to remain secure in high vibration environments.

For more information on Telecentricity, view Using Telecentric Lenses.

Due to size and weight, mounting clamps are recommended for all Telecentric lenses. Due to weight and center of gravity concerns, the 0.125X telecentric lens requires a mounting clamp and 0.08X telecentric lens includes mounting clamp (removable). Do not mount from camera. #56-025 Mounting Clamp can be used to mount our 0.5X and 0.36X TECHPEC® Gold Series Telecentric Lenses and 0.9X TECHPEC® High Precision Large Format 4 Megapixel Telecentric Lenses.

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Description Stock No. Price In Stock  
Showing 1-9 of 9 Items | Sort by Spec
0.73X Gold Series Telecentric Lens (1/2" Series)
NT58-256 $1,495.00 In stock and ready to ship. Click to add this item to your cart.
Primary Magnification PMAG 0.727X
Field of View, 1/2" Sensor (mm) 8.8
Working Distance (mm) 98- 123
Resolution, Image Space MTF @ F10 >65% @ 40 lp/mm
Telecentricity (°) <0.1
Distortion (%) 0.10 Max
Depth of Field (mm) ±1.0 at F10
Aperture (f/#) F6 - F19.5
Maximum Diameter (mm) 68
Length excluding Threads (mm) 200.1
Filter Thread M62 x 0.75
Weight (lbs) 2.5
Stock No. of Mounting Clamp #56-024 Sold Separately
RoHS Exempt
0.36X Gold Series Telecentric Lens (1/2" Series)
NT58-257 $1,495.00 Click to receive an email with delivery information. Click to add this item to your cart.
Primary Magnification PMAG 0.36X
Field of View, 1/2" Sensor (mm) 17.6
Working Distance (mm) 117 - 142
Resolution, Image Space MTF @ F10 >70% @ 40 lp/mm
Telecentricity (°) <0.1
Distortion (%) 0.10 Max
Depth of Field (mm) ±3.9 at F12
Aperture (f/#) F6 - F18
Maximum Diameter (mm) 65
Length excluding Threads (mm) 150
Filter Thread M58 x 0.75
Weight (lbs) 2
Stock No. of Mounting Clamp #56-025 Sold Separately
RoHS Not Compliant
0.18X Gold Series Telecentric Lens (1/2" Series)
NT58-258 $1,845.00 In stock and ready to ship. Click to add this item to your cart.
Primary Magnification PMAG 0.18X
Field of View, 1/2" Sensor (mm) 35.2
Working Distance (mm) 161 - 186
Resolution, Image Space MTF @ F10 >60% @ 40 lp/mm
Telecentricity (°) <0.1
Distortion (%) 0.20 Max
Depth of Field (mm) ±16 at F12
Aperture (f/#) F6 - F18
Maximum Diameter (mm) 79
Length excluding Threads (mm) 196.3
Filter Thread M72 x 0.75
Weight (lbs) 3.6
Stock No. of Mounting Clamp #56-026 Sold Separately
RoHS Not Compliant
0.09X Gold Series Telecentric Lens (1/2" Series)
NT58-259 $2,295.00 In stock and ready to ship. Click to add this item to your cart.
Primary Magnification PMAG 0.09X
Field of View, 1/2" Sensor (mm) 70.4
Working Distance (mm) 132- 182
Resolution, Image Space MTF @ F10 >60% @ 40 lp/mm
Telecentricity (°) <0.1
Distortion (%) 0.10 Max
Depth of Field (mm) ±64 at F12
Aperture (f/#) F6 - F17.4
Maximum Diameter (mm) 110
Length excluding Threads (mm) 200
Filter Thread M105 x 1.0
Weight (lbs) 6.8
Stock No. of Mounting Clamp #56-027 Sold Separately
RoHS Not Compliant
1.0X Gold Series Telecentric Lens (2/3" Series)
NT55-350 $1,495.00 Click to receive an email with delivery information. Click to add this item to your cart.
Primary Magnification PMAG 1X
Field of View, 1/2" Sensor (mm) 6.4
Field of View, 2/3" Sensor (mm) 8.8
Working Distance (mm) 98 - 123
Resolution, Image Space MTF @ F10 >45% @ 40 lp/mm
Telecentricity (°) <0.1
Distortion (%) 0.50 Max
Depth of Field (mm) ±0.6 at F12
Aperture (f/#) F6 - F25
Maximum Diameter (mm) 68
Length excluding Threads (mm) 200.1
Filter Thread M62 x 0.75
Weight (lbs) 2.5
Stock No. of Mounting Clamp #56-024 Sold Separately
RoHS Exempt
0.5X Gold Series Telecentric Lens (2/3" Series)
NT54-798 $1,495.00 Click to receive an email with delivery information. Click to add this item to your cart.
Primary Magnification PMAG 0.5X
Field of View, 1/2" Sensor (mm) 12.8
Field of View, 2/3" Sensor (mm) 17.6
Working Distance (mm) 117 - 142
Resolution, Image Space MTF @ F10 >45% @ 40 lp/mm
Telecentricity (°) <0.1
Distortion (%) 0.50 Max
Depth of Field (mm) ±2.5 at F12
Aperture (f/#) F6 - F25
Maximum Diameter (mm) 65
Length excluding Threads (mm) 150
Filter Thread M58 x 0.75
Weight (lbs) 2
Stock No. of Mounting Clamp #56-025 Sold Separately
RoHS Compliant
0.25X Gold Series Telecentric Lens (2/3" Series)
NT55-349 $1,845.00 In stock and ready to ship. Click to add this item to your cart.
Primary Magnification PMAG 0.25X
Field of View, 1/2" Sensor (mm) 25.6
Field of View, 2/3" Sensor (mm) 35.2
Working Distance (mm) 161 - 186
Resolution, Image Space MTF @ F10 >45% @ 40 lp/mm
Telecentricity (°) <0.1
Distortion (%) 0.50 Max
Depth of Field (mm) ±10 at F12
Aperture (f/#) F6 - F25
Maximum Diameter (mm) 79
Length excluding Threads (mm) 196.3
Filter Thread M72 x 0.75
Weight (lbs) 3.6
Stock No. of Mounting Clamp #56-026 Sold Separately
RoHS Compliant
0.125X Gold Series Telecentric Lens (2/3" Series)
NT55-348 $2,295.00 In stock and ready to ship. Click to add this item to your cart.
Primary Magnification PMAG 0.125X
Field of View, 1/2" Sensor (mm) 51.2
Field of View, 2/3" Sensor (mm) 70.4
Working Distance (mm) 132 - 182
Resolution, Image Space MTF @ F10 >45% @ 40 lp/mm
Telecentricity (°) <0.2
Distortion (%) 0.75 Max
Depth of Field (mm) ±38 at F12
Aperture (f/#) F6 - F25
Maximum Diameter (mm) 110
Length excluding Threads (mm) 200
Filter Thread M105 x 1.0
Weight (lbs) 6.8
Stock No. of Mounting Clamp #56-027 Sold Separately
RoHS Not Compliant
0.08X Gold Series Telecentric Lens (Mount Included)
NT56-948 $4,495.00 Click to receive an email with delivery information. Click to add this item to your cart.
Primary Magnification PMAG 0.08X
Field of View, 1/2" Sensor (mm) 80
Field of View, 2/3" Sensor (mm) 110.0
Working Distance (mm) 170 - 220
Resolution, Image Space MTF @ F10 >45% @ 40 lp/mm
Telecentricity (°) <0.2
Distortion (%) 0.35 Max
Depth of Field (mm) ±105 at F12
Aperture (f/#) F6 - Closed
Maximum Diameter (mm) 160
Length excluding Threads (mm) 277.2
Filter Thread M154 x 1.5
Weight (lbs) 14.8
Stock No. of Mounting Clamp Included
RoHS Not Compliant
 View Legend
Description Stock No. Price In Stock  
Showing 1-4 of 4 Items | Sort by Spec
Mounting Clamp, 0.125X & 0.09X
NT56-027 $185.00 In stock and ready to ship. Click to add this item to your cart.
RoHS Compliant
Mounting Clamp, 0.25X & 0.18X
NT56-026 $175.00 In stock and ready to ship. Click to add this item to your cart.
RoHS Compliant
Mounting Clamp, 0.5X & 0.36X Gold and 0.9X Large Format
NT56-025 $155.00 In stock and ready to ship. Click to add this item to your cart.
RoHS Compliant
Mounting Clamp, 1.0X & 0.73X
NT56-024 $155.00 In stock and ready to ship. Click to add this item to your cart.
RoHS Compliant
Telecentric Lens Mounting Clamp Dimensions
Stock No. A B C D E F G
#56-024 88mm 16mm 34mm 94mm 120mm 101.6mm 50mm
#56-025 85mm 17.5mm 32.5mm 91mm 120mm 101.6mm 48.5mm
#56-026 103mm 39.5mm 107mm 103mm 90mm 55.5mm
#56-027 134mm 55mm 148mm 134mm 122mm 81mm
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